I'll take numbers 3, 8, 9, 10, and 11 from Miriam's list.
I have one friend who, when she sees pictures I've posted of a new orphan machine I have, will ask if we need to have a hoarder intervention. I have another coworker where we have this conversation every Monday morning:
Him: "Did you do anything fun this weekend?"
Me: "Mmm. Nothing too exciting. Yard work, stuff."
Him: "Did you buy another sewing machine."
Me: "Uhh...well...."
Him: "You did! You did!" Frowns at me. "I'll bet it was a Singer."
Me: "Well...yeah, but it's really interesting because of such and such feature, and I don't have one like it, and it was just too cheap to pass up."
Him: Walks off shaking his head and laughing at me.